Provides the AVHRR Global Land Cover classification as modified by Paul Tol (colorblind safe).

scale_colour_land(..., lang = "en", aesthetics = "colour")

scale_color_land(..., lang = "en", aesthetics = "colour")

scale_fill_land(..., lang = "en", aesthetics = "fill")

Arguments

...

Arguments passed on to ggplot2::discrete_scale().

lang

A character string specifying the language for the color names (see details). It must be one of "en" (english, the default) or "fr" (french).

aesthetics

A character string or vector of character strings listing the name(s) of the aesthetic(s) that this scale works with.

Value

A discrete scale.

Details

Values will be matched based on the soil names.

References

Tol, P. (2018). Colour Schemes. SRON. Technical Note No. SRON/EPS/TN/09-002, issue 3.1. URL: https://personal.sron.nl/~pault/data/colourschemes.pdf

See also

Author

N. Frerebeau

Examples

library(ggplot2)

land <- data.frame(
  name = c(
    "water", "evergreen needleleaf forest", "deciduous needleleaf forest",
    "mixed forest", "evergreen broadleaf forest", "deciduous broadleaf forest",
    "woodland", "wooded grassland", "grassland", "cropland", "closed shrubland",
    "open shrubland", "bare ground", "urban and built"
  )
)

ggplot2::ggplot(land, ggplot2::aes(fill = name)) +
  ggplot2::geom_rect(aes(xmin = rep(0, 14), xmax = rep(1, 14),
                         ymin = 1:14, ymax = 1:14+1)) +
  ggplot2::scale_y_reverse() +
  scale_fill_land(name = "land")